2.Effect of Mesalazine Combined with Trimebutine on Mast Cell and Related Inflammatory Mediators in Colonic Mucosa in Patients with Irritable Bowel Syndrome
Hui ZHANG ; Qi MIAO ; Yuelong WU ; Jian WAN ; Shanjuan WANG ; Fang LU ; Yonghui LIN ; Haifeng REN ; Xiaobo LI
Chinese Journal of Gastroenterology 2017;22(5):276-281
Background: Mast cell activation is a characteristic of irritable bowel syndrome (IBS).Study on mast cell and the related inflammatory mediators in colonic mucosa is helpful for the evaluation and treatment of IBS.Aims: To assess the effect of mesalazine combined with trimebutine on colonic mucosal mast cell and related inflammatory mediators in patients with IBS.Methods: Forty patients with diarrhea-predominant IBS (IBS-D) and 40 patients with constipation-predominant IBS (IBS-C) from Oct.2014 to June 2016 at Shanghai Jiading District Central Hospital were enrolled, 20 healthy volunteers were served as controls.Forty patients with IBS-D and 40 patients with IBS-C were randomly divided into mesalazine+trimebutine group and trimebutine group, the treatment courses were all 4 weeks.Number of mast cell was counted by modified toluidine blue staining.Score of related inflammatory mediators were evaluated by immunohistochemistry.Clinical efficacy was assessed.Results: Compared with healthy controls, number of mast cell at baseline was significantly increased both in IBS-D and IBS-C patients (P<0.05).After treatment with mesalazine+trimebutine, number of mast cell was significantly decreased (P<0.05).At baseline, immunohistochemical staining score of 5-HT, IL-1, TNF-α, histamine, tryptase were significantly increased in IBS patients than in healthy controls (P<0.000 1).After treatment with mesalazine+trimebutine, above-mentioned inflammatory mediators were significantly decreased (P<0.05).In IBS-D patients, the total efficacy rate in mesalazine+trimebutine group was significantly increased than that in trimebutine group (85.0% vs.45.0%, P=0.008).In IBS-C patients, no significant difference in total efficacy rate was found between mesalazine+trimebutine group and trimebutine group (55.0% vs.25.0%, P=0.053).Conclusions: Mesalazine combined with trimebutine is an effective and safe approach to reduce mast cell infiltration and release of related inflammatory mediators, and is more efficient for patients with IBS-D.
3.Effect of pulchinenoside on FZD8 expression of adjuvant arthritis rats.
Cheng-gui MIAO ; Guo-liang ZHOU ; Mei-song QIN ; Jian-zhong CHEN ; Cheng-feng LI ; Hua-qi HE ; Bing ZHANG
China Journal of Chinese Materia Medica 2015;40(20):4063-4067
To study the effect of pulchinenoside (PULC) on the Frizzled (FZD) expression of adjuvant arthritis ( AA) rats. AA rats were prepared through the toe injection with complete Freund's adjuvant to culture fibroblast-like synoviocytes (FLS). The effect of the oral administration with PULC on the FZD8 expression was detected by the real time qPCR. The effect of FZD8 knockout on the expressions of IL-1, IL-6, IL-8 were detected by MTT and ELISA. The role of miR-375 in the abnomal expression of FZD8 was detected by the real time qPCR. The results showed signfiicant decrease in the FZD8 expression among AA rats, FLS proliferation ater FZD8 knockout and IL-1, IL-6, IL-8 expressions and notable increase in miR-375 expression after the oral administration with PULC. The up-regulated miR-375 expression can inhibit the FZD8 expression. PULC may inhibit the FZD8 expression by up-regulating the miR-375 expression.
Animals
;
Arthritis, Experimental
;
drug therapy
;
genetics
;
metabolism
;
Disease Models, Animal
;
Drugs, Chinese Herbal
;
administration & dosage
;
Humans
;
Male
;
Rats
;
Rats, Sprague-Dawley
;
Receptors, Cell Surface
;
genetics
;
metabolism
;
Saponins
;
administration & dosage
4.Pulchinenoside control MeCP2 expression in FLS from RA model rats.
Cheng-Gui MIAO ; Guo-Liang ZHOU ; Mei-Song QIN ; Jian-Zhong CHEN ; Cheng-Feng LI ; Hua-Qi HE
China Journal of Chinese Materia Medica 2014;39(23):4664-4668
The role of pulchinenoside (PULC) in the regulation of MeCP2 expression was investigated in RA model rats. Adjuvant arthritis rats were used as RA model rats, and fibroblast-like synoviocytes (FLS) from the RA model rats were cultured. The effect of 100 mg x kg(-1) PULC gavage treatment on the MeCP2 expression and the effect of MeCP2 siRNA on the expression of SFRP2 and β-catenin were detected by real time qPCR and Western blotting. The role of PULC in the FLS proliferation was detected by MTT. The results showed that the MeCP2 expression was down-regulated, the SFRP2 expression was up-regulated and the FLS proliferation was inhibited in FLS after therapy. MeCP2 siRNA significantly inhibited the MeCP2 expression, up-regulated the SFRP2 expression and inhibited the β-catenin expression in FLS from RA model rats. PULC may increase the SFRP2 expression, inhibit the Wnt signaling and inhibit the FLS proliferation in FLS from the RA model rats by inhibiting the MeCP2 expression.
Animals
;
Arthritis, Rheumatoid
;
drug therapy
;
genetics
;
metabolism
;
Disease Models, Animal
;
Drugs, Chinese Herbal
;
administration & dosage
;
Fibroblasts
;
drug effects
;
metabolism
;
Gene Expression Regulation
;
drug effects
;
Humans
;
Male
;
Methyl-CpG-Binding Protein 2
;
genetics
;
metabolism
;
Rats
;
Rats, Sprague-Dawley
;
Synovial Membrane
;
cytology
;
drug effects
;
metabolism
;
Wnt Signaling Pathway
;
drug effects
;
beta Catenin
;
genetics
;
metabolism
6.Triple cusps replacement for active aortic endocarditis.
Chao WANG ; Qi MIAO ; Chao-Ji ZHANG ; Xing-Rong LIU ; Guo-Tao MA ; Jian-Zhou LIU ; Xiao-Feng LI ; Hai-Bo DENG
Chinese Medical Journal 2013;126(7):1400-1400
Aortic Valve
;
surgery
;
Endocarditis
;
surgery
;
Humans
7.Carbohydrate antigens as potential biomarkers for the malignancy in patients with idiopathic deep venous thrombosis: A retrospective cohort study.
Miao, YU ; Yun-Hong, WANG ; Ahmed M E, ABDALLA ; Wen-Qi, LIU ; Fei, MEI ; Jian, WANG ; Chen-Xi OUYANG ; Yi-Qing, LI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2014;34(5):722-8
A variety of biomarkers have been identified in recent prospective and retrospective reports as being potentially predictive of venous thromboembolis (VTE), particularly idiopathic deep venous thrombosis (IDVT). This study identified a serum tumor biomarker for early screening of IDVT. A total of 128 IDVT patients (54 females and 74 males; average age: 50.9±17.4 years) were included. Carcinoembryonic antigen (CEA), ferritin, β2-microglobulin, cancer antigen (CA) 125, CA 15-3, CA 19-9, squamous cell carcinoma antigen (SCC), alpha-fetoprotein (AFP), prostate specific antigen (PSA), free PSA (f-PSA), and beta-human chorionic gonadotropin (β-HCG) in patients with IDVT were detected. Malignancies were histo- or cytopathologically confirmed. Of the 128 IDVT patients, 16 (12.5%) were found to have malignancies. Serum CEA, CA 125, CA 15-3, and CA 19-9 were found to be helpful for detecting malignancies in IDVT patients. Our study revealed a positive association between these markers and tumors in IDVT patients. On the other hand, SCC and AFP were not sensitive enough to be markers for detecting tumors in patients with IDVT. No significant differences were found in positive rates of ferritin and β2-microglobulin between tumor and non-tumor groups, and no significant difference exists in serum levels of ferritin and β2-microglobulin between the two groups. Carbohydrate antigens, CA 15-3 in particular, may be useful for differential diagnosis and prediction of malignancies in patients with IDVT.
8.Effect of methylprednisolone pretreatment on pulmonary permeability and dipalmitoylphosphatidylcholine content in rabbits with reexpansion pulmonary edema.
Yu-wen KE ; Miao-ning GU ; Qi-hong LIU ; Jian-she XU ; Shan-he WAN
Journal of Southern Medical University 2011;31(6):1090-1092
OBJECTIVETo investigate the effects of methylprednisolone pretreatment on pulmonary lung permeability index and the content of the pulmonary surfactant dipalmitoylphosphatidylcholine (DPPC) in a rabbit model of reexpansion pulmonary edema.
METHODSTwenty-one male New Zealand white rabbits were randomly divided into control group, reexpansion, and reexpansion+methylprednisolone pretreatment groups. The rabbit model of reexpansion pulmonary edema was established using Sakaos method. A bolus dosage of methylprednisolone (3 mg/kg) in reexpansion+methylprednisolone group group or 2.0 ml/kg normal saline in the other two groups was administered intravenously 20 min before reexpansion pulmonary edema. Bronchoalveolar lavage fluid (BALF) and arterial blood samples were collected for measurement of the total protein (TP) and DPPC contents 4 h after reexpansion, and the pulmonary permeability index was calculated.
RESULTSThe pulmonary permeability index in methylprednisolone pretreatment group was significantly lower than that in the reexpansion group (0.007∓0.002 vs 0.177∓0.004, P<0.05). Methylprednisolone pretreatment significantly increased DPPC concentration in the BALF as compared with saline treatment in the reexpansion group (61.815∓28.307 vs 101.955∓24.544 µg/ml, P<0.05).
CONCLUSIONMethylprednisolone pretreatment can increase pulmonary surfactant content and improve pulmonary permeability in the rabbit model of reexpansion pulmonary edema.
1,2-Dipalmitoylphosphatidylcholine ; analysis ; Animals ; Bronchoalveolar Lavage Fluid ; Capillary Permeability ; drug effects ; Male ; Methylprednisolone ; pharmacology ; Permeability ; Pulmonary Edema ; metabolism ; physiopathology ; Pulmonary Surfactants ; metabolism ; Rabbits
9.Viral gastroenteritis outbreaks associated with new recombinant strain GⅡ.P16/GⅡ.2 of norovirus in Fujian, 2016
shan Bing WU ; miao Zhi HUANG ; ming Jian OU ; qi Xiao QI ; wei Ye HUANG ; wei Yu WENG
Chinese Journal of Zoonoses 2017;33(9):805-808,813
We delineated the molecular characteristic of recombinant strain GⅡ.P16/GⅡ.2 of norovirus associated with acute viral gastroenteritis outbreaks in Fujian Province in winter of 2016.Norovirus were detected in specimens of patients collected from the gastroenteritis outbreaks by real time reverse transcription-PCR and reverse transcription-PCR (RT-PCR).The PCR products of the positive samples were purified,and partial RNA dependent RNA polymerase (RdRp) gene and partial capsid gene were sequenced.The sequences were analyzed using bioinformatics software and online database,and phylogenetic tree were also constructed.Norovirus were detected in all 18 stools.Analysis of 9 positive sequences indicated an emergence of norovirus GⅡ.P16/ GⅡ.2 and confirmed being the cause of gastroenteritis outbreaks.All the strains shared homology of 98% with strains of Kawasaki 194 of Japan detected in 2016 and 97.7%-98.8% with IPH2161-08VG06 of Belgium detected in 2008,RdRp and capsid separately.These outbreak strains showed some degree of differences from the predominant strain,2012 Sydney GⅡ.4 variant.This is the first time to have found norovirus GⅡ.P16/ GⅡ.2 causing viral gastroenteritis outbreaks in Fujian.More in-depth analysis of the Norovirus GⅡ.P16/ GⅡ.2 could be useful to optimize preventative strategies and develop new and more effective therapeutic measure.
10.Effect of pulchinenoside in regulating FLS SFRP2 expression of RA model rats.
Cheng-Gui MIAO ; Jian-Ting YANG ; Hua-Qi HE ; Shi-Tang MA ; Guo-Liang ZHOU ; Min GAO ; Jian LIU
China Journal of Chinese Materia Medica 2013;38(12):1977-1981
OBJECTIVETo study the effect of pulchinenoside (PULC) in modulating SFRP2 expression in fibroblast-like synoviocytes (FLS) of rheumatoid arthritis (RA) model rats.
METHODThe effect of PULC in treating RA rats was evaluated by rat arthritis score and paw swelling score. The inhibitory effect of PULC on FLS proliferation was detected by MTT reagent. The effects of PULC gavage treatment in modulating gene expression of FLS SFRP2, critical gene beta-catenin of Wnt pathway and downstream effector genes C-myc of of Wnt pathway were detected by RT-PCR and Western blotting.
RESULTPULC had a significant effect in treating RA rats and that SFRP2 expression was down-regulated in FLS. After PULC gavage treatment, FLS SFRP2 expression was obviously up-regulated, whereas beta-catenin and C-myc gene expressions were significantly down-regulated.
CONCLUSIONPULC can inhibit abnormal proliferation of synovial membrane by modulating Wnt pathway of RA rats.
Animals ; Arthritis, Rheumatoid ; drug therapy ; metabolism ; Disease Models, Animal ; Gene Expression Regulation ; drug effects ; Male ; Membrane Proteins ; genetics ; Rats ; Rats, Sprague-Dawley ; Saponins ; pharmacology ; Synovial Membrane ; drug effects ; metabolism